Realurls

Dive into Deep Learning (D2L.ai)

Also known as d2l, d2l en, d2l-ai, d2l-ai/d2l-en, d2l-en. GitHub d2l-ai.

Official domains: d2l.ai

Identity anchored by github-history:d2l-ai/d2l-en(age=7y,contrib=320,stars=29538). Display name from github_org_display_name(self-declared).

d2l.ai verified primary · confidence 0.67 · verified 2026-09-05

1 independent anchor(s) + 2 independent corroboration(s): meets the verified threshold

EvidenceWhat it shows
A1 not counted GitHub verified this organization's domain (DNS-level check performed by GitHub)
org=d2l-ai org_verified=false blog=https://D2L.ai
 source
A8 anchor Anchored repository's homepage points here, and this site links back
repo=d2l-ai/d2l-en org=d2l-ai repo_anchored=true homepage=https://D2L.ai backlink=true stars=29538 age_days=2888 contributors=320
 source
A3 not counted Corporate registrar fingerprint (brand-protection registrar, long prepaid term, registry locks)
registrar=NameCheap, Inc. created=2018-12-26 expires=2030-12-26 remaining_days=1573 locks=["transfer"]
 source
A4 not counted TLS certificate carries the organization name (OV/EV)
subject_org= validation_type=DV issuer=Amazon san_count=2
 TLS handshake d2l.ai:443
B5 corroboration Tranco top-1M ranking
rank=68855 source=top-1m list
 source
B4 corroboration Wayback Machine history
first_snapshot=2019-01-14 history_days=2791
 source
3 piece(s) of evidence not counted — why
  • A1: GitHub organization has not verified this domain (is_verified != true)
  • A3: registrar (NameCheap, Inc.) is not a brand-protection registrar
  • A4: DV certificate carries no organization name (most modern tech companies use DV; this is expected)
Reproduce this yourself
# A1 — GitHub verified this org's domain
curl -s https://api.github.com/orgs/d2l-ai | jq '{name, blog, is_verified}'

# A8 — anchored repo's homepage
curl -s https://api.github.com/repos/d2l-ai/d2l-en | jq '{homepage, created_at, stargazers_count}'

# A3 — registrar / dates / locks
curl -sL https://rdap.org/domain/d2l.ai | jq '{status, events, registrar: [.entities[]|select(.roles[]=="registrar")|.vcardArray[1][1][3]]}'

# B5 — Tranco rank
curl -s https://tranco-list.eu/api/ranks/domain/d2l.ai

# B4 — first Wayback snapshot
curl -s "http://web.archive.org/cdx/search/cdx?url=d2l.ai&limit=1&output=json"

# Re-run the whole pipeline for this domain
git clone https://github.com/zhouchungong/realurls-registry && cd realurls-registry && pip install -e . && python -m src.verify d2l.ai

Think this is wrong? Open a dispute — the burden of proof is on us, and the record is downgraded while we check. Source record: YAML.